<template>
  <div class="back_header">
     <van-icon name="arrow-left" @click="$router.back()"/>
  </div>
</template>

<script>
export default {
  setup() {},
};
</script>
<style lang="scss" scoped>
.back_header{
  position: fixed;
  height: 34px;
  width: 34px;
  line-height: 34px;
  text-align: center;
  top: 20px;
  left: 20px;
  z-index: 99;
  border: 2px solid #fff;
  border-radius: 50%;
  .van-icon-arrow-left{
      background: #fff;
      border-radius: 50%;
      padding: 4px;
  }
}
</style>